Falling Back

Three people wake to find themselves in the past. One leaves his family behind to discover the truth he never truly got the first go round. Another breaks free of his captors and seeks a way to make up for the wrongs done by his hands. The last one simply rolls over in bed and wishes he had stayed dead, not willing to put up with the same bullshit all over again.

Warning
slash included

No Thanos even though he is in their previous timeline, the reason will be explained.

Tony died in Civil War before

[This is another old work of mine that I haven't touched in forever because of writers block.]